This site features a lot of images made with the VituixCAD software package. In an ideal world, one would start with this speaker design software before building a speaker. It features a lot of tools one could need to design a speaker that is world class in it’s performance. It can trace existing frequency curves, to create a preliminary set of off-axis predictions using the diffraction tool. You can model your speaker, including the use of DSP, FIR filters and/or passive components and test it against other type of speakers with regards to it’s preference score. (with the assistance of the Harman developed preference score calculation). I’ll include a full set of predictions below including a sample of a preference score prediction.

VituixCAD Sixpack

I’ve made extensive use of this software package to learn more about line array behavior in general. And as a secondary step: optimize it’s behavior by making it frequency shaded. Don’t get me wrong, I’m fully aware of the compromises I make with this type of speaker using full range drivers. However, if we use it’s strong points and continue to optimize it with little or not so little steps, a lot is possible. It’s tools like VituixCAD that help get us there. With the software I’ve mentioned here (I’m just a humble user) one can truly get a grip on speaker design and start to learn what works (in a room) and why.

VituixCAD Preference score

Preference Rating

It should be obvious I chose to show off a rating with a high number here. But even on the top most equation within VituixCAD (equation Nr. 9 from the Harman patent) I’m still rated at 8.379, and 8,535 on equation Nr. 10.

The Speaker Data page with quite a high number of speakers sorted on “Preference Rating” used equation Nr. 9.

Consider my prediction here to be quite accurate, but consider it to include the sub-woofer result. It still is just a prediction of a simulation tool, using simulated, mostly ‘ideal’ behaving drivers, probably more ideal than reality can gets us. As I’m using full range speaker drivers to run from about 160 Hz up to 18 KHz, one should realize that the top end will never really be able to rival any good and dedicated tweeter. The mid-range it brings is to die for though, and the overall coherence is quite excellent. It makes you forget about woofers, mids and tweeters. What remains is the music.